Bill weighs 150lbs. he wants to gain 2lbs per week for football season. Jamal runs track. He wants to loose weight so he can run faster. Jamal weighs 195lbs and wants to loose 1lb per week. How many weeks will it take before both of them are the same weight?

$12. that is my answer.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.